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[ GLSA 200608-18 ] Net::Server: Format string vulnerability
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Thu, 10 Aug 2006 21:50:55 +0200

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Gentoo Linux Security Advisory                           GLSA 200608-18
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Net::Server: Format string vulnerability
      Date: August 10, 2006
      Bugs: #142386
        ID: 200608-18

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Synopsis
========

A format string vulnerability has been reported in Net::Server which
can be exploited to cause a Denial of Service.

Background
==========

Net::Server is an extensible, generic Perl server engine. It is used by
several Perl applications like Postgrey.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  dev-perl/net-server       < 0.88                          >= 0.88

Description
===========

The log function of Net::Server does not handle format string
specifiers properly before they are sent to syslog.

Impact
======

By sending a specially crafted datastream to an application using
Net::Server, an attacker could cause a Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Net::Server should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-perl/net-server-0.88"

References
==========

  [ 1 ] CVE-2005-1127
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1127

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200608-18.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security () gentoo org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

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